Long-acting antibacterial agent, long-acting antibacterial agent with instant effect and preparation method of long-acting antibacterial agent

An antibacterial agent and long-acting technology, which is applied in the field of long-acting antibacterial agents and their preparation, can solve the problems of limited application range, harmfulness and environmental protection of organic antibacterial agents, antibacterial agents are not washable, and achieve the effect of wide applicability

Active Publication Date: 2019-05-10
天津西敦粉漆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a kind of long-acting antibacterial agent, to solve the problems of the existing antibacterial agent not being washable, long-acting poor, application range limitation, antibacterial active component Ag ion easy yellowing and using organic antibacterial agent Harmful to the human body and environmental protection

Method used

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  • Long-acting antibacterial agent, long-acting antibacterial agent with instant effect and preparation method of long-acting antibacterial agent
  • Long-acting antibacterial agent, long-acting antibacterial agent with instant effect and preparation method of long-acting antibacterial agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The composition of a kind of long-acting antibacterial agent is as follows: nano-silver powder 15wt%, silicon micropowder 70wt%, polyvinyl alcohol (PVA) 10wt%, polyethylene oxide (PEO) 2wt%, polyacrylamide (PAM) 1wt%, orthosilicic acid Ethyl ester (TEOS) 2wt%.

[0044] The above materials: nano silver powder TF-41023 (30-50 nanometers): Suzhou Tanfeng Technology Co., Ltd.; silicon micropowder: Jinghang Mineral Products Co., Ltd.; polyvinyl alcohol (PVA), polyethylene oxide (PEO), polyacrylamide (PAM) tetraethyl orthosilicate was obtained from Tianjin Yuanli Chemical Co., Ltd.

[0045] The preparation method of this long-acting antibacterial agent is as follows:

[0046] A1. Weigh the above-mentioned corresponding amount of each raw material in proportion, stir polyvinyl alcohol (PVA), polyethylene oxide (PEO), polyacrylamide (PAM) in deionized water at 1000rpm and heat to 80°C until fully dissolved and An aqueous solution is formed, and the total concentration of the ...

Embodiment 2

[0053] The composition of long-acting antibacterial agent is as follows: nano-silver powder 15wt%, porous silica gel 70wt%, polyvinyl alcohol (PVA) 10wt%, gum arabic (AG) 2wt%, calcium chloride (PAM) 2wt%, epichlorohydrin 1wt% .

[0054] The above materials: Porous silica gel: Qingdao Bangkai; Calcium chloride: Guangzhou Suixin Chemical; Polyvinyl alcohol (PVA), polyethylene oxide (PEO), epichlorohydrin: Tianjin Yuanli Chemical Co., Ltd.; Gum Arabic (AG ): Norevo (Suzhou) Food Co., Ltd.

[0055] The preparation method of this long-acting antibacterial agent is as follows:

[0056] A1. Weigh the above-mentioned corresponding amounts of each raw material in proportion, stir polyvinyl alcohol (PVA), gum arabic, and calcium chloride in deionized water at 400rpm and heat to 100°C until fully dissolved and form an aqueous solution, hydrophilic polymer The total concentration in the aqueous solution or water-soluble-dispersion is between 0.1% and 20%, and the total concentration of...

Embodiment 3

[0061] The composition of long-acting antibacterial agent is as follows: nanometer silver powder 15wt%, 4A molecular sieve 70wt%, hydroxypropyl methylcellulose (HPMC) 12wt%, rutile type nano titanium dioxide (TTO-55) 2wt% and ethylene glycol glycidyl ether 1wt% %.

[0062] The above materials: 4A molecular sieve: PQ Techn Company of the United States; hydroxypropyl methylcellulose (HPMC): Ashland Company of the United States; rutile nano-titanium dioxide: Ishihara Taibaike Company of Japan; ethylene glycol glycidyl ether: Shanghai Rufa Chemical Technology Co., Ltd.; other materials are the same as in Example 1.

[0063] The preparation method of this long-acting antibacterial agent is as follows:

[0064] A1. Weigh the above-mentioned corresponding amounts of each raw material in proportion, stir hydroxypropyl methylcellulose (HPMC) and rutile nano-titanium dioxide (TTO-55) in deionized water at 2000rpm and heat to 50°C until fully dissolved and An aqueous solution is formed...

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Abstract

The invention discloses a long-acting antibacterial agent, a long-acting antibacterial agent with an instant effect and a preparation method of the long-acting antibacterial agent, and relates to thetechnical field of coating antibacterial agents. The long-acting antibacterial agent mainly comprises nano silver, carrier particles and hydrophilic polymers / a mixture of hydrophilic polymers and hydrophilic inorganic matters, and the long-acting antibacterial agent with the instant effect comprises nano silver, silver salts, other metal salts, carrier particles, hydrophilic polymers / a mixture ofhydrophilic polymers and hydrophilic inorganic matters and a cross-linking agent. By the invention, the problems that a coating film prepared by an existing antibacterial agent is not washable and poor in long-acting property, yellowing of antibacterial active component Ag ions is easily caused, an organic antibacterial agent is harmful to human bodies, pollutes the environment and the like are solved. In addition, hydrophilic polymers or a mixture of the hydrophilic polymers and hydrophilic oligomers or inorganic matters wrap the surface of the antibacterial agent, the releasing speed of silver ions is controlled, and silver simple substances can be promoted to ionize silver ions to resist bacteria.

Description

technical field [0001] The invention relates to the technical field of coating antibacterial additives, in particular to a long-acting antibacterial agent, an instant-acting long-acting antibacterial agent and a preparation method thereof. Background technique [0002] With the development of society, people are more and more concerned about their own health, looking forward to a cleaner living and working environment. Public places, office and production environments, and the surfaces of facilities, tools, and utensils that people often touch in the living room can easily become a breeding ground for pathogens, and become a way for pathogens to enter the human body and cause diseases. For example, public transport vehicles, building interior walls, hospital equipment and hospital beds, office and living furniture, electrical equipment, children's toys, etc. are typical routes of pathogen transmission. Therefore, the surface with antibacterial coating can greatly reduce the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14C09D5/03C09D167/00C09D7/61C09D7/65C09D7/63
Inventor 祝京旭张辉伊思敏·瑞兹万娜
Owner 天津西敦粉漆科技有限公司
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